Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Upper Hanover Water Authority

o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND90ND
2021ND100ND
2022ND130ND
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 600 ppb

The EWG Health Guideline of 600 ppb for o-dichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 600 ppb

The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-308001978-01ND
2018-04-258008140-01ND
2018-07-178017906-01ND
2018-07-258019752-01ND
2018-07-258019752-02ND
2018-10-108028641-01ND
2019-01-238038660-01ND
2019-05-079009685-01ND
2019-08-218038658-01ND
2019-09-249034252-01ND
2019-12-119033962-01ND
2020-03-1821847893.00ND
2020-03-2021847922.00ND
2020-03-2021847921.00ND
2020-04-2822024163.00ND
2020-04-2822024162.00ND
2020-06-2422417297.00ND
2020-07-0122417298.00ND
2020-10-0623183408.00ND
2020-11-2023362965.00ND
2021-03-1624061090.00ND
2021-03-1924061091.00ND
2021-04-2124248442.00ND
2021-04-3024248594.00ND
2021-07-0624829853.00ND
2021-07-0924830006.00ND
2021-10-0525405587.00ND
2021-10-2925405744.00ND
2021-12-2925765022.00ND
2021-12-2925765001.00ND
2022-02-0125943607.00ND
2022-02-0125943606.00ND
2022-02-0125943608.00ND
2022-02-2326118539.00ND
2022-02-2326118540.00ND
2022-05-0526649358.00ND
2022-05-0626649359.00ND
2022-06-0226649536.00ND
2022-06-0326649537.00ND
2022-07-0727037977.00ND
2022-07-0827037978.00ND
2022-12-0127999406.00ND
2022-12-0227999407.00ND
2023-01-0428173526.00ND
2023-04-1028703154.00ND
2023-04-1128703153.00ND
2023-04-1128703152.00ND
2023-07-0329302587.00ND
2023-10-0329700861.00ND
2023-11-2830246498.00ND